Cemented carbide yog cov khoom siv hlau ua los ntawm cov khoom siv tawv tawv ntawm cov hlau refractory thiab cov hlau sib txuas los ntawm cov txheej txheem hmoov metallurgy.Nws feem ntau yog ua los ntawm cov ntaub ntawv sib txuas (xws li cobalt, npib tsib xee, hlau lossis cov khoom sib xyaw ntawm cov ntaub ntawv saum toj no) ntxiv rau cov ntaub ntawv nyuaj (xws li tungsten carbide, molybdenum carbide, tantalum carbide, chromium carbide, vanadium carbide, titanium carbide lossis lawv. sib tov).
Cemented carbide muaj cov khoom zoo heev, xws li siab hardness, hnav tsis kam, zoo zog thiab toughness, kub tsis kam, corrosion kuj, thiab lwm yam, tshwj xeeb tshaj yog nws cov hardness siab thiab hnav tsis kam, uas tseem nyob twj ywm tsis hloov txawm nyob rau ntawm 500 ℃ thiab tseem muaj. siab hardness ntawm 1000 ℃.Nyob rau hauv peb cov ntaub ntawv, lub hardness yog los ntawm siab mus rau qis: sintered pob zeb diamond, cubic boron nitride, cermet, cemented carbide, high-speed steel, thiab lub toughness yog los ntawm qis mus rau siab.
Cemented carbide yog dav siv los ua cov cuab yeej cuab tam, xws li cov cuab yeej tig, milling cutters, planers, laum khoom, tho txawv cutters, thiab lwm yam., rau txiav hlau cam khwb cia hlau, non-ferrous hlau, yas, tshuaj fibers, graphite, iav, pob zeb thiab cov hlau zoo tib yam, thiab tseem siv rau kev txiav cov cua kub-resistant steel, stainless hlau, siab manganese steel, cuab yeej hlau thiab lwm yam nyuaj rau tshuab cov ntaub ntawv.
Cemented carbide muaj siab hardness, lub zog, hnav tsis kam thiab corrosion kuj, thiab yog hu ua "industrial hniav".Nws yog siv los tsim cov cuab yeej txiav, cov cuab yeej txiav, cov cuab yeej cobalt thiab qhov hnav-tiv taus.Nws yog dav siv hauv kev lag luam tub rog, aerospace, machining, metallurgy, roj drilling, mining cov cuab yeej, hluav taws xob kev sib txuas lus, kev tsim kho thiab lwm yam kev lag luam.Nrog rau txoj kev loj hlob ntawm downstream industries, kev lag luam thov rau cemented carbide yog nce.Thiab nyob rau hauv lub neej yav tom ntej, kev tsim khoom ntawm high-tech riam phom thiab cov cuab yeej siv, kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev loj hlob sai ntawm lub zog nuclear yuav ua rau muaj kev thov ntau rau cov khoom siv cemented carbide nrog cov ntsiab lus siab thiab kev ruaj ntseg zoo. .
Nyob rau hauv 1923, schlerter ntawm lub teb chaws Yelemees ntxiv 10% - 20% cobalt rau tungsten carbide hmoov raws li binder, thiab invented ib tug tshiab alloy ntawm tungsten carbide thiab cobalt.Nws hardness yog thib ob tsuas yog pob zeb diamond, uas yog thawj cov khoom siv cemented carbide hauv ntiaj teb.Thaum txiav cov hlau nrog lub cuab yeej ua los ntawm cov hlau no, cov hniav yuav hnav sai sai, thiab txawm tias cov hniav yuav tawg.Nyob rau hauv 1929, schwarzkov ntawm lub tebchaws United States ntxiv ib co ntawm cov compound carbide ntawm tungsten carbide thiab titanium carbide rau cov thawj muaj pes tsawg leeg, uas txhim kho cov kev ua tau zoo ntawm steel tej cuab yeej.Qhov no yog lwm qhov kev ua tiav hauv keeb kwm ntawm kev txhim kho cemented carbide.
Cemented carbide kuj tseem siv tau los ua cov cuab yeej pob zeb, cov cuab yeej mining, cov cuab yeej drilling, ntsuas cov cuab yeej, cov khoom siv tiv taus, cov hlau abrasives, lub tog raj kheej liner, precision bearings, nozzles, hardware pwm (xws li hlau kos pwm, ntsia liaj qhov rooj pwm, txiv ntseej. pwm, thiab ntau yam fastener pwm.Qhov kev ua tau zoo ntawm cemented carbide tau maj mam hloov cov pwm pwm yav dhau los).
Hauv ob xyoos dhau los, coated cemented carbide kuj tau tshwm sim.Xyoo 1969, Sweden tau ua tiav cov cuab yeej titanium carbide coated.Lub substrate ntawm lub cuab yeej yog tungsten titanium cobalt cemented carbide los yog tungsten cobalt cemented carbide.Lub thickness ntawm titanium carbide txheej nyob rau saum npoo tsuas yog ob peb microns, tab sis piv nrog cov cuab yeej alloy ntawm tib hom, kev pab cuam lub neej txuas ntxiv los ntawm 3 zaug, thiab kev txiav ceev yog nce 25% - 50%.Lub cim thib plaub ntawm cov cuab yeej txheej tau tshwm sim hauv xyoo 1970, uas tuaj yeem siv los txiav cov ntaub ntawv uas nyuaj rau tshuab.
Post lub sij hawm: Lub Xya hli ntuj-22-2022
